Hoop-shaving machine



(No Model.)

l J. PRINCE.

HOOP SHAVING MACHINE.

No. vZLIQBDZQ.l P Patented Mar. 13,1883;

ATTORNEYS.

iUNITED STATES PATENT Ormes.

JOHN PRINCE, OF WEST RANDOLPH, VERMONT.

i-iooP-si-iAviNG iviAci-iiNe SPECIFICATION forming part of Letters Patent No. 274,029, dated March 13, 1883.

Application filed Tune 23, 1EE2. (No ntodel.)

To all whom 'it may concern Be it known that l, JoHN-PRINCE, ot' West Randolph, in the county of Orange and State ot' Vermont, have invented a new and lmproved Hoop-Shaving Machine, of which the following is a full, clear, and exact description.

i The object of my invention is to provide a practical hoop-shaving machine, and one which ro shall be automatic and rapid in its Iaction.

` My improved machine consists of a reciprocatin g carriage provided with clutch mechanism for grasping the hoops, which is antoinatically operated by suitable stops on the frame, and of suitable knives, which are also automatically operated, (opened and closed,) for receiving and shaving the hoop by a sliding wedge or cam plate passing through a slotted bai' held in the plates which hold the 2o knives. Suitable springs are provided for guiding the hoop as it is drawn between the knives for shaving.

Reference is to be had to the accompanying drawings, forming part of this specification, in

which similar letters of reference indicate corresponding parts in all the figures.

Figure lis a perspective view, partly in section, of my improved hoop-shaving machine.

. Fig. 2 is a detailed plan view, showing the 3o clutchand the lever for operating it; and Fig. 3 is a detailed plan view of the forward part of the machine, showing the knives, guidesprings, and the forward end ofl the cam or wedge plate for operating the knives.

To the rameA of the machine are secured the horizontal parallel beams B B', between which the reciprocating carriage C is held and moved. This carriage is by preference operated by the pinion D, which meshes with the 4o rack d, formed upon or secured to the under side ot' the carriage. The beam B' is guttered upon the upper side, as shown at b, to receive and clear the rack in the movement of the carrage, as will be understood from Fig. l.

.i5 To the outside of the carriage G is secured the clutch E, which grasps the hoops to be shaved and draws them between the knives g and h, secured to the forward end of the ma'- chine. 'The clutch is composed of the plate a, j

5o bolted to the carriage O, the memberl e, hinged to the said plate a, as clearly shown in Fig. 2, and the leverf, which is secured to the plate a in the eye c, and operates the member e by means of the stud@l thereof moviugin the slot c `of the said member, the lever being reciprocated 'by being brought, as the carriage is reciprocated, alternately in contact with the overhanging arms N and N', secured to the beam B.

The knife g is securedto theupper 'end ot" 6o the plate F, which is bolted to the forward end of the machine, and the knife L is secured to .the upper end of the plate F', which is hinged4 at]l tothe plate F, as shown in Fig. l. These plates are tied together near their upper ends by means of the bar Gr, which passes through correspondingpassagesorslotsformed through the plates. The bar G is slotted to receive the wedgeK at one end, outside of the plate F, andthe forward end of the knife-operating 7o bar L at the other end, outside of the plate F. The forward end ot the knife-operatin g bar L is made wedge-shaped, as shownat Z in Fig. 3, and receives reciprocating movement from the carriage G by meansof the bifurcated arm P, securedto the carriage, coming in contact with the pins o o', fixed in the bar, as shown in Fig. l.

Q Q are the guide-springs, secured to the extensions d' d' of the plates F F', in front of 8o i the knives, as shown in Figs. l and 3. The hoops are fed to the machine between these springs, and they hold the hoops firmly, while being drawn between the knives, at a point in front ot the knives, which keeps the hoops steady and obviates all danger of the hoops being cut off in shaving past short bends in the hoop, andthe springs also cause the knives to follow the 'grain of the wood; and these springs Q Q are adjustable by means of the bolts q q,by which they are secured to the said @extensions d' d', and the knives-are easily adjustable, by means of the bolt-s s s, for setting their edges at different angles for giving the hoops greater or less bevel,.as desired, and the contiguity of the edges of the knives may be changed, for producinghoops of different thicknesses, by passing the wedge K a greater or less distance through its slot in the bar Gr.

The pinion Dis run by means of the straight 10o belt H and the crossed belt J, passing over suitable' fixed and-loose pulleys, to which pulleys the belts are alternately shipped, for gi ving the reverse motion to the pinion, by means of the shipping-lever H', which is given a backward and forward movement by the pins o' t, fixed in the rod L, upon either side of the lever, as will be understood from Fig. 1.

In use, the machine being set in motion, it is only necessary to feed the blanks or hoops lto be shaved endwise between the springs Q Q and the edges ofthe knives into the clutch.

This is to be done about the time the carriage reaches the limit of its forward movement, as at this time the knives and springs are open for the reception of the blanks or hoops, the same having been opened by the previous backward movement of the carriage, causing backward movement ot' the bar L. About the time the carriage reaches'the limit of its forward movement the leverfstrikes the arm N, which causes the clutch to firmly grasp the end of the hoop to be shaved, and at this time the knives and springs are closed upon the hoop, so that upon the reverse or backward movement of the carriage, which now begins by reason of the shipping ofthe belts, the hoop will be drawn between the knives and shaved. About the time the carriage reaches the limit of its backward movement the lever f strikes the arm N', which opens the clutch and releases the hoop. At this time the belts are again shipped and the machine repeats the operation.

In this manner it will be seen that the machine is entirely automatic, requiring only to be fed, and that it may be run at great speed, and that the hoops will be made of even thickness throughout, and that no short bends will be left in the hoops. Besides these advantages, the machine is cheap and simple and not liable to get out of order.

Upon the outside ofthe plate F' are formed the flanges b' b', between which the plate G is placed, and upon which the lower'orinner edge of the plate L bears, as shown in Fig. 1. By this construction the action of the bar L is more direct upon the plate F' than it would be if the bar were made to bear upon the broad surface of the said plate.

Having thus fully described my invention, I claim as new and desire to secure by Letters Patentl. In a hoop-shaving machine, the combina. tion of the plates F F', carrying the knives g h and the guide-springs Q Q, the convergent ends of the latter being arranged toward the convergent ends of the knives, the slotted tieplate G, wedge or key K, and the sliding wedgeshaped bar L, substantially as and for the purpose set forth.

2. In a hoop-shaving machine, the combination, with the bar or plate a, attachedto the D carriage G, member e, hinged or pivoted to the bar a, and having an elongated slot, c', and the leverf, having a stud, t', entering the slot of member e, of the arms N N', depending in a ,fixed position in the plane of the movement ofthe leverf, substantially as and forthe purpose set forth.

3. In a hoop-shaving machine', the carriage C, provided with the bifurcated arm P, in combination with and adapted to embrace the knife-operating rod L, said rod having stops or projections o o' t, the shipper or lever H', and the carriage-operating gear and belts H J, substantially as and for the purpose set forth.

4:. The hoop-shaving machine consisting ot the knives g h and guide-springs Q Q, affixed to the carrying plates or bars F F', hinged or pivoted together at their lower ends, the sliding wedge-shaped bar or rod L, having pins or stops o 0' t, and connected to the slotted plate G, keyed to the bars F F', the reciprocating carriage G, the automatic clutch mechanism comprising the plate a, studded leverf,

slotted member e, and the arms N N', the bi- J OH N PR INCE.

Witnesses:

MELBURN W. HU'roHINs, GEORGE W. DUsTIN. 

